Description and OperationHyundai Elantra AD (2016-2020) Service Manual: Electric Thermostat (ECT) Troubleshooting
Troubleshooting
SymptomsPossible CausesRemedyCoolant leakage
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From the thermostat gasket
Check the mounting nuts
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Check the torque of the mounting nuts
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Retighten the bolts and check leakage again.
Check the gasket for damage
•
Check gasket or seal for damage
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Hyundai Elantra AD (2016-2020) Service Manual: Vacuum Pump Repair procedures
Removal
1.
Remove the cylinder head cover.
(Refer to Cylinder Head Assembly - "Cylinder Head Cover")
2.
Remove the timing chain.
(Refer to Timing System - "Timing Chain")
3.
Remove the vacuum pump (A).
•
Do not disassemble the vacuum pump.
4.
To ins ...